Life Span
Annual and Perennial
Perennial
Type
Tender Perennial
Tree
Origin
Eastern Africa
Europe, Eastern Europe, Southern Europe, Russia/Siberia, Iran, Central Asia, Southern Asia, Western Asia, India, Nepal, China
Types
-
Black walnut
Number of Varieties
1530
0
40000
👆🏻
Habitat
Rocky Ridges, Shores of rivers or lakes, Tropical Climate, tropical environments
Cold Regions, Hills, Hillside
USDA Hardiness Zone
11-124-8
0
99
👆🏻
AHS Heat Zone
7-1
7-1
Sunset Zone
H1, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Cushion/Mound-forming
Oval or Rounded
Plant Size
Minimum Height
25.40 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Purple, Violet
Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Green, Brown
Leaf Color in Spring
Dark Green
Green, Copper
Leaf Color in Summer
Dark Green
Dark Green
Leaf Color in Fall
Dark Green
Dark Green, Yellow green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Ovate
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Slow
Medium
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Indeterminate
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Frost
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings, stem tip cuttings
Budding, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Keep ground moist, Keep the Soil well drained, Medium, Requires regular watering
Requires watering in the growing season, Water Deeply, Water when top layer of soil becomes dry
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral
Acidic, Neutral
Soil Type
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Pinch Tips, Prune prior to new growth, Prune to stimulate growth
In Early Autumn, Prune to stimulate growth, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
fertilize in spring, Nitrogen
Pests and Diseases
Grey mold, Leaf spot, Mites, Root rot
Anthracnose, Armillaria mellea, Blight, Caterpillars, Crown gall, Crown rot, fungus, Powdery mildew, Red blotch
Plant Tolerance
Drought
Drought, Frost
Flowers
Showy
Insignificant
Flower Petal Number
Single
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Coarse
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Flying insects, Hummingbirds
-
Allergy
Pollen
Severe allergen
Uses
Aesthetic Uses
Bouquets, Cut Flowers, Decorating walls, Hanging Basket, Showy Purposes, Used for decorating walls, fences, gates, hedges, etc.
-
Beauty Benefits
-
Good for skin and hair
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Absorbs greenhouse gases, Absorbs huge amounts of CO2, Air purification, Amazing growth rate, Erosion control, Food for birds, Food for insects, Forms dense stands, Nesting sites for birds, Prevent Soil Erosion, Shadow Tree, Shelter for wildlife, Windbreak
Plant Benefits
Medicinal Uses
-
Anemia, Asthma, Cancer, Cough, Diarrhea, Menstrual Disorders, Urinary tract problems
Part of Plant Used
Flowers, Leaves
Fruits, Seeds
Other Uses
Used as Ornamental plant, Used for bedding in gardens
Economic Purpose, Used as a dye, Used as firewood, Used As Food, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Edging, Houseplant, Tropical
Edible, Feature Plant, Shade Trees
Botanical Name
EXACUM affine
JUGLANS regia
Common Name
German Violet, Persian Violet
English Walnut
In Hindi
persian violet
अंग्रेजी अखरोट
In German
persian violet
Englisch Walnut
In French
persian violet
Anglais Noyer
In Spanish
Violeta persa
Inglés nuez
In Greek
Περσικό Violet
Αγγλικά Καρυδιά
In Portuguese
Violeta persa
Inglês Walnut
In Polish
Persian Violet
orzech włoski
In Latin
hyacinthum Persarum
Nucis anglicus
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Gentianales
Fagales
Family
Gentianaceae
Juglandaceae
Genus
Exacum
Juglans
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Exaceae
Juglandeae
Subfamily
-
Juglandoideae
Number of Species
2521
1
27800
👆🏻